[aerohead]

Darin,between 70 and 120 km/h the "curve" is very linear,just as auto engineers claim.Any ecomodder who established a baseline for their own car at any two distinct speeds,and drawing a straight line between those two points on a graph,ought to be able to interplolate or extrapolate mpg at any speed for their car,with a fair degree of confidence.-----------Another valuable tool! Your great graphics and presentation intimidate the hell out of me! "I am not worthy," Thanks mucho,Phil.